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C O N T R O L S

WI-FI THERMOSTAT

iComfort Wi-Fi

®

 Flex Thermostat

Bulletin No. 210725 

December 2015 

The 

iComfort Wi-Fi

®

 Flex Thermostat

 recognizes 

and connects conventional heating/cooling 

products to automatically configure and control 

the system (based on user-specified settings) 

for the highest level of comfort, performance and 

efficiency.

Additional indoor air quality comfort products 

(PureAir™ Air Purification System, Healthy 

Climate

®

 Humidifiers, Healthy Climate

®

 Energy/

Heat Recovery Ventilators, Healthy Climate

®

 

Germicidal Lights) can be added to the system for 

a complete total-comfort system.
A simple easy-to-use touchscreen allows complete 

system configuration. Scheduled maintenance 

alerts, system warnings and troubleshooting are 

also displayed on thermostat screen.
One-Touch Away Mode - A quick and easy way to 

set the cooling and heating setpoints while away.
Weather-On-Demand - Live up-to-date weather 

data and five-day forecasts.

Easy to read 7 in. color screen (measured 

diagonally).
Dimensions (H x W x D) - 5 x 7-1/2 x 1 in.

Installer setup screens allow quick and simple 

system configuration without a manual.

Installer can also run tests on complete system or 

individual components for easy maintenance and 

troubleshooting.

Serial communications bus (RSBus), with less 

wiring than a conventional heating/cooling system. 

Uses 4-wire, 18-gauge standard thermostat wiring.

Subbase (with terminal strip) and all necessary 

mounting hardware is furnished for easy 

installation.
The 

Equipment Interface Module (EIM)

 allows 

the iComfort Wi-Fi

®

 Flex Thermostat to be used 

with most conventional HVAC systems (with up to 

3 stages heating and 2 stages cooling).
See 

page 2

 for System Components.

See 

page 21

 for available system configurations.

P R O D U C T   S P E C I F I C AT I O N S

Wi-Fi remote monitoring and 

adjustment 

through a home 

wireless network 

for desktop PCs, 

laptops and apps 

for smartphones 

or tablets.
Service 

alerts and 

reminders 

sent via text 

message or e-mail.

Contents

Control Ordering Information . . . . . . . . . . . . . 20
EIM Connections . . . . . . . . . . . . . . . . . . . 21

Features - Equipment Interface Module (EIM)

 . . . . 20

Features - iComfort Wi-Fi

®

 Flex Thermostat

 . . . . .  6

Homeowner Remote Access

 . . . . . . . . . . . . .  3

Installer Setup

.   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   . 12

System Components

 . . . . . . . . . . . . . . . . .  2

User Settings

 . . . . . . . . . . . . . . . . . . . . .  6

ICOMFORT

®

 WI-FI FLEX THERMOSTAT

Summary of Contents for 11U61

Page 1: ...ally Dimensions H x W x D 5 x 7 1 2 x 1 in Installer setup screens allow quick and simple system configuration without a manual Installer can also run tests on complete system or individual components for easy maintenance and troubleshooting Serial communications bus RSBus with less wiring than a conventional heating cooling system Uses 4 wire 18 gauge standard thermostat wiring Subbase with termi...

Page 2: ...rge Air Temperature Sensor Conventional Air Handler RSBus iComfort Wi Fi Flex Thermostat Equipment Interface Module EIM LEGEND RSBus Conventional Wiring Di Temp iComfort Wi Fi Flex Web and Mobile Apps iComfort Wi Fi Fle Web and Mobile Ap ATTENTION The Lennox iComfort Wi Fi Flex Thermostat with Equipment Interface Module EIM will work with most 24VAC furnaces air conditioners air handlers and heat ...

Page 3: ...s for smartphones or tablets After logging in and creating a profile My Profile the homeowner can enter specific information for the iComfort Wi Fi Thermostat single or multiple systems set up multiple homes My System The homeowner can control all iComfort Wi Fi Thermostats on the network remotely through the Website Dashboard Multiple iComfort Wi Fi Thermostat Control One home one iComfort Wi Fi ...

Page 4: ...nual settings Mode Settings Cool Only Heat Only Heat or Cool Off Emergency Heat heat pump Fan Settings Auto On Circulate Away Mode Button Alerts Reminders Tab Current Alerts with Date and Time Service Information Tab Dealer Information Change Dealer Button System Tab System Name and information about HVAC equipment ON OFF Skins tab Upload Image Current Weather Conditions Local 5 Day Weather Foreca...

Page 5: ...osoft Corporation in the United States and other countries Available on the Download from Windows Store Download from Windows Store CUSTOM SCREEN SAVER SKINS Any high quality image JPG format only 800 x 480 300 dpi for best resolution can be uploaded to www myiComfort com to change the appearance of the thermostat screen to match any color pattern design or décor Turn on Screen Saver on the iComfo...

Page 6: ...isplay Displays current indoor relative humidity FEATURES ICOMFORT WI FI FLEX THERMOSTAT USER SETTINGS System Status Display animated System is Heating System is Cooling System is Cooling and Dehumidifying System is Dehumidifying System is Waiting time delay Fan Button animated On Auto Circulate Current Outdoor Temperature Displays current outdoor temperature in F or C The default outdoor temperat...

Page 7: ...time or fully locked no adjustment To unlock touch and hold the lock icon for 5 6 seconds FEATURES SCREEN Touch any Button to display desired screen Edit Program Button see page 9 System Settings Button see page 7 Display Settings Button see page 8 Alerts Button see page 9 Reminders Button see page 9 Service Button see page 12 Home Icon lower right returns to Home Screen SYSTEM SETTINGS SCREEN Hum...

Page 8: ...rbon Temperature Scale Button Fahrenheit or Celsius Screen Saver Button ON OFF Skins Screen Lockout Button Unlocked Partially Locked Language Button English Français Español Outdoor Temperature Display Button Off Internet Sensor Optional Outdoor Air Temperature Sensor is required and must be ordered extra for Sensor Display setting Backlight Intensity Button Adjustable 20 40 60 80 100 default 80 C...

Page 9: ...sday etc Program Setting Buttons Time Adjustable in 15 minute increments Cool To Adjustable in 1 increments Heat To Adjustable in 1 increments Fan Mode On Auto Circulate Touch and hold any time button to disable that period ALERTS SCREEN Displays Alert History Alert Code Date and Time Alert occurred System Reports Set Alert Button Last 24 Hours Last 30 Days Last 12 Months REMINDERS SCREEN Reminder...

Page 10: ...hermostat to the Internet to the Lennox server Router Button Internet Status Indicator Server Button iComfort Wi Fi Flex Thermostat supports wireless bands 802 11b 802 11c and 802 11n Touch Router Button to access Network Setting Screen if not connected Touch Server Button to access Thermostat Registration if not registered NOTE A red X means that there is an issue with a connection point that mus...

Page 11: ...Add New Network Button Touch desired Network Button to connect to network opens keyboard tool to input security key or passphrase FEATURES ICOMFORT WI FI FLEX THERMOSTAT USER SETTINGS NETWORK SETUP SCREEN Touch the Add New Network Button to open the network setup screen Enter Network Name SSID Select security type None WEP WPA WPA2 Enter Password Touch Connect ...

Page 12: ...th keyboard tool Thermostat Info Button Model Number Serial Number Hardware Revision Software Revision AWAY MODE SCREEN Set Away Temperature Setpoints Sets the thermostat for energy saving mode while away for an extended period of time System will only operate if indoor temperature falls below 62 F for heating or rises above 85 F for cooling Adjustable Set cooling setpoint temperature Button cool ...

Page 13: ...rent value of each setting Touch any line and touch Edit to change System Settings Installer System Settings and Default Setting System Setting Range Condition Default Setting Modify with Time and Date Clock Setting Screen Daylight Saving Time Enabled Disabled Enabled Radio Buttons Circulate Fan ON Time 15 to 45 35 Up Down Arrows Temperature Unit Fahrenheit Celsius Fahrenheit Radio Buttons System ...

Page 14: ...Number Device Product Level 24VAC Average Power Consumption 24VAC Peak Power Consumption INSTALLER SETTINGS Line Voltage Average Power Consumption Line Voltage Peak Power Consumption Outdoor Fan RPM Profile Heat Pump Language Support Equipment Type name Unit Model Number Unit Serial Number Unit Nominal Capacity Number of Heating Stages Number of Cooling Stages Heating Capacity by Stage Cooling Cap...

Page 15: ...DEVICES SCREEN Use the up down arrows to scroll through available system devices Touch any line and touch Yes to add or remove non communicating equipment Bold indicates default setting Outdoor Unit Type Not Installed 2 Stage AC Unit 2 Stage HP Unit 1 Stage AC Unit 1 Stage HP Unit Outdoor Unit Capacity 18 to 60 kBtuh default is 60 kBtuh Outdoor Unit 1st Stage Capacity 30 to 100 default is 70 Humid...

Page 16: ...ifferential 0 5 to 3 0 F default is 1 0 F 2nd and 3rd Stage Differential 0 5 to 8 0 F default is 0 5 F Staged Delay Timers Enabled Disabled 2nd and 3rd Stage Delay 5 to 120 min in 5 min increments default is 20 min Number of heating stages shown depends on equipment installed Electric heat is staged at every 2 elements Balance Point Control Enabled Disabled High Balance Point 17 to 75 F default is...

Page 17: ...tion Airflow 60 to 80 default is 70 Delay Settings Heating Indoor Blower OFF 60 to 180 sec default is dependent on DIP switch setting in furnace Heating Indoor Blower ON 15 to 45 sec default is 30 sec Cooling Indoor Blower OFF 0 to 30 sec default is 0 sec Cooling Indoor Blower ON 0 to 10 sec default is 2 sec HP Indoor Blower OFF 0 to 60 sec default is 45 sec HP Indoor Blower ON 0 to 30 sec default...

Page 18: ...age 9 Diagnostics Button Run system diagnostics See page 18 View Active Button View any active alerts View Cleared View any previously cleared alerts TESTS SCREEN A variety of system tests can be performed by the installer Select the tests to be performed individually by touching the checkboxes or use the Select All Button to run all available tests Use the Deselect All Button to uncheck all boxes...

Page 19: ... FI FLEX THERMOSTAT INSTALLER SETTINGS DIAGNOSTICS SCREEN Allows installer to run diagnostic tests on any iComfort enabled product EQUIPMENT SCREEN The Equipment Button allows the same equipment setting adjustments as in setup see Adjust System Devices page 16 ...

Page 20: ...F O B Connections are also furnished for an Outdoor Air Temperature Sensor and Discharge Air Sensor Sensors must be ordered separately Blade type 3 amp fuse protects module FEATURES EQUIPMENT INTERFACE MODULE EIM EIM CASE Constructed of high impact ABS plastic Hinged cover with latching tabs prevents tampering Can be mounted on the side of the indoor unit or a nearby stud or wall Dimensions H x W ...

Page 21: ...rs Most Furnaces Yes Yes Most Air Handlers Yes Yes Heat Pump Most Heat Pumps Most Furnaces Yes Yes Most Air Handlers Yes Yes 1 Indoor unit must contain the Equipment Interface Module EIM EIM CONNECTIONS Non Communicating Connections Outdoor Air Temperature Sensor Connections Discharge Air Sensor Connections iComfort RSBus Connections 3 Amp Fuse RSBus LED Unit Type Jumper Heating Stage Jumper Heat ...

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Page 24: ...ility Improper installation adjustment alteration service or maintenance can cause property damage or personal injury Installation and service must be performed by a qualified installer and servicing agency 2015 Lennox Industries Inc Visit us at www lennox com For the latest technical information www lennoxdavenet com Contact us at 1 800 4 LENNOX ...

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